Steam-engine.



' B. 0. BALL.

STEAM ENGINE.

APILIOATION FILED BIEPT. 17, 1909.

.' 974 54 Patented No v.1,1910.

W i k h kiwi B. 0. BALL.

STEAM ENGINE.

APPLIOATION FILED BEPTJJ, 1909.

' Patented Nov. 1, 1910.

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UNITED STATES PATENT OFFICE.

BERT 0. BALL, OF PORTLAND, OREGON.

STEAM-ENGINE.

To all whom it may concern:

Be it known that I, BERT C. BALL, a citizen of the United States,residing at Portland, in the county of Multnomah and State of Oregon,have invented new and useful Improvements in Steam-Engines, of which thefollowing is a specification.

This invention relates to steam engines, and consists in certainimprovements in the construction thereof as will be hereinafter fullydescribed and pointed out in the claims.

More particularly, the invention relates to a steam engine particularlyadapted for use in logging, or such a steam engine as is commonly knownas a logging engine.

The invention is illustrated in the accompanying drawing as follows:

Figure 1 shows a side elevation of one of the engines of the loggingengine; Fig. 2 a section on the line 22 in Fig. 1; Fig. 3 a perspectiveview of the logging engine.

1 marks the base which is ordinarily made up of I-beams; 2 marks theengine frame. This is secured to the I-beam.

3 marks the engine cylinder; 4 the cross head guide; 5 the cross head; 6the piston rod; 7 the-connecting rod; 8 a crank pin; 9 the crank disk;10 the steam chest, 11 and 12 the steam inlet and exhaust pipe from thesteam chest.

These engines are commonly mounted at each side of a boiler A. It isparticularly desirable to have the engine so formed that its frame canbe readily secured to the frame supporting the boiler, and also so thatthe working parts may be readily accessible.

In the present construction the steam chest 10 is arranged above thecylinder. This is a desirable arrangement of the steam chest in thisclass of engine independent of the convenience of attaching the engineframe to the base. In the present construction it has the addedadvantage that the engine frames may be arranged closer together withthe interposed boiler.

In carrying out the invention, the valve rod 13 extends from the steamchest to a rocker arm 14. It is connected with the rocker arm by meansof a pin 14. The rocker arm 14 is pivotally mounted on a pin 15. Pin 15is mounted in the frame 2. A valve actuating connecting rod 16 is alsoconnected to the rocker arm 14, a pin 14 being provided for thispurpose. The connecting rod 16 is also journaled on the crank pinSpecification of Letters Patent.

Application filed September 17, 1909.

Patented Nov. 1, 1910. Serial No. 518,212.

17. The valve actuating crank 18 is mounted on the crank pin 8. It ispreferably formed with the collar 19, split arm 20, and clamping bolts21, so that it may be readily fixed on the crank pin 8, and when it isdesirable to remove it, may be conveniently removed. The valveconnecting rod 16 is connected to the rocker arm 14 by a pin 14", whilethe valve rod 13 is connected to the rocker arm 14 by a pin 14*, the rod13 being on the inside of the rockerarm 14 as is clearly shown in Fig.2. By this mounting the movement is carried from the plane passingthrough the pin 17,which is outside of the plane of the valve rod 13,tothe plane of the valve rod 13, the movement being carried over theconnecting rod 7 and actuating parts. This construction of valveactuating mechanism is particularly desirable with any enginehaving thesteam chest above the cylinder, but it is particularly de sirable in alogging engine in that the valve gear is readily accessible, and is soplaced as to permit of a compact mounting of the engine. Ordinarily anupright cylindrically shaped boiler is used 1n this combination. WViththis construction of valve mechanism, the cylinder on the engine can beplaced at one side of the radial plane of the boiler, at right angles tothe axis of the cylinder, and the crank at the opposite side of saidradial plane, thus permitting the engine to be set very close to theboiler walls, the boiler walls following in a way the outline of theengine. In this way the total width of the machine may be decreased, andthis is quite a consideration in this type of engine. This bringing inof the engine also simplifies the frame, and strengthens the mounting.

WVhat I claim as new is:

1. In an engine, the combination of a frame; an engine cylinder securedto the frame; a steam chest on the top of the cylinder; a cross headguide; a cross head arranged in the guide; a piston rod extending fromthe cylinder to the cross head; an engine connecting rod connected tothe cross head; a crank on which the connecting rod is journaled; avalve actuating crank mounted on the engine crank; 21 valve rodextending from the valve above the cross head guides; a connecting rodextending from the actuating crank and connected with the valve rodabove the cross head guide; and an upright cylindrically shaped boiler,the engine frame being mounted at the side of the boiler with the enginecylinder at one side of a plane in which the axis of the boiler lies andextending radially from the boiler and at right angles to the axis ofthe cylinder and with the engine crank at the opposite end of saidplane.

2. In a logging engine, the combination of a base frame; an enginecylinder secured to the frame; a steam chest on the top of the cylinder;a cross head guide; a cross head arranged in theguide; a piston rodextending from the cylinder to the cross head; an engine connecting rodconnected to the cross head; a crank on which the connecting rod isjournaled; a valve actuating crank mount-- ed on the engine crank; avalve rod extending from the steam chest; a rocker arm arranged insidethe connecting rod, and pivotally mounted on the frame with its pivotbelow the valve rod; a valve connecting rod journaled on the valveactuating crank, and extending outside of the engine connecting rod, andconnected with the rocker arm; means for connecting the valve rod withthe rocker arm; and an upright cylindrically shaped boiler, the engineframe being mounted at the side of the boiler with the engine cylinderat one side of the plane in which the axis of the boiler lies andextending radially from the boiler and at right engine connecting rodconnected to the cross head; a crank on which the connecting rod isjournaled; a valve actuating crank mounted on the engine crank; a valverod extending from the steam chest; a rocker arm arranged inside theconnecting rod, and pivotally mounted on the frame with its pivot belowthe valve rod; a Valve connecting rod journaled on the valve actuatingcrank, extending outside the engine connecting rod, and connected withthe-rocker arm above the engine connecting rod; and means for connectingthe valve rod with the rocker arm.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

BERT C. BALL. Vitnesses W. N. CORBETT, C. W. BALE.

